Handle welding device for liquefied petroleum gas tank manufacturing
Patent Information
- Application Number
- CN202522621875.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-10
AI Technical Summary
Existing welding devices for liquefied petroleum gas cylinder handles are difficult to center the circular handle on the top of the cylinder, which easily leads to misaligned welding and incomplete welding. Furthermore, the handle is prone to shifting during the welding process, resulting in a decrease in welding quality.
A welding device was designed, comprising a support frame, a turntable, a hydraulic rod, and a pressing and positioning assembly. The positioning column is driven by the hydraulic rod to insert into the opening of the tank. The handle is centered and pressed into contact with the hinge seat and the limit seat. The stability is ensured by the spring and the transmission rod.
This design achieves centered placement and compression contact of the handle at the top of the tank, improving the welding quality of the liquefied petroleum gas tank handle.
Smart Images
Figure CN224927334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquefied gas tank manufacturing technology, specifically to a handle welding device for manufacturing liquefied petroleum gas tanks. Background Technology
[0002] Liquefied petroleum gas (LPG) tanks are special pressure vessels used to store LPG. They are widely used in industrial, commercial, and civilian fields. Small LPG tanks are mostly upright cylindrical in shape. To facilitate the handling of LPG tanks, a notched circular handle needs to be welded to the center of the top of the tank during manufacturing.
[0003] The existing welding equipment for liquefied petroleum gas (LPG) cylinder handles is not conducive to placing the notched ring handle in the center of the top of the cylinder during use. This makes it easy for the weld to be crooked. Furthermore, during the welding process, it is not possible to ensure that the ring handle and the top of the cylinder are in proper contact. This can lead to incomplete welding and misalignment of the ring handle during the welding process, all of which reduce the quality of the LPG cylinder handle welding. Utility Model Content
[0004] The purpose of this utility model is to solve the problems mentioned above, which are unfavorable for the centered placement of the ring-shaped handle on the top of the tank, thus easily leading to misaligned welding, and the inability to ensure the extrusion contact between the ring-shaped handle and the top of the tank, thus easily leading to empty welding and displacement of the ring-shaped handle during the welding process, all of which reduce the welding quality of the liquefied petroleum gas tank handle. This utility model provides a handle welding device for manufacturing liquefied petroleum gas tanks.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A handle welding device for manufacturing liquefied petroleum gas tanks includes a support frame, a placement seat fixedly connected to the front side of the bottom of the support frame, a turntable rotatably connected to the center of the top of the placement seat, a mounting seat fixedly connected to the top of the support frame, a hydraulic rod fixedly mounted at the center of the top of the mounting seat, the hydraulic rod extending downward through the mounting seat to the lower side of the mounting seat, and a compression positioning component provided at the bottom of the hydraulic rod for centering and positioning the handle above the tank body.
[0006] Furthermore, the top of the turntable is provided with an anti-slip groove, and a motor is fixedly installed at the center of the bottom of the placement seat. The motor is connected to the turntable for transmission. After the gas tank is placed on the turntable, the motor can drive the turntable and the gas tank to rotate.
[0007] Furthermore, the extrusion positioning assembly includes a sleeve, the bottom of the hydraulic rod is rotatably connected to the sleeve, an extrusion plate is slidably connected to the outer side of the middle part of the sleeve, a spring is fixedly connected between the top of the extrusion plate and the top of the sleeve, a positioning post is slidably connected to the center of the bottom of the sleeve, a spring is fixedly connected between the top of the positioning post and the inner wall of the top of the sleeve, transmission rods are evenly hinged to the outer periphery of the bottom of the sleeve and the outer periphery of the bottom of the positioning post, and a hinge seat is hinged to the adjacent side of the transmission rod on the upper and lower sides, and a limit seat is fixedly connected to the outer side of the middle part of the hinge seat.
[0008] Furthermore, the bottom end of the positioning post adopts a conical pointed design, which allows the positioning post to be inserted centrally and downward into the opening at the top of the gas tank.
[0009] Furthermore, one end of the transmission rod on the upper and lower sides is hinged to the outer periphery of the bottom of the sleeve and the outer periphery of the bottom of the positioning column, respectively, and the other end is hinged to the hinge seat after being symmetrically tilted outward. Therefore, during the process of the positioning column moving upward relative to the sleeve, the hinge seat can be pushed outward by the transmission rod.
[0010] Furthermore, the outer surface of the limiting seat is designed with an arc surface, which is beneficial for the extrusion contact between the outer surface of the limiting seat and the inner wall of the handle.
[0011] Furthermore, the extrusion positioning assembly also includes a collar, on the outside of the positioning post, a collar is slidably connected to the collar, and connecting cylinders are uniformly fixedly connected to the periphery of the collar, with each connecting cylinder aligned with the hinge seat. Telescopic rods are slidably connected to the inside of the outer side of each connecting cylinder, and one outer end of each telescopic rod is fixedly installed at the center of the inner end of the hinge seat, thereby ensuring the stability of the hinge seat when it expands outward or contracts inward.
[0012] The beneficial effects of this utility model are as follows: This invention, through the design of the extrusion positioning component, utilizes the cooperation between the bottom tip of the positioning column and the top opening of the gas tank during the downward movement of the extrusion positioning component, and then pushes the hinge seat and the limiting seat to move outward. Combined with the downward pressure of the extrusion plate, it can achieve the centered placement of the handle on the top of the gas tank and ensure the extrusion contact between the handle and the top of the tank, thereby improving the welding quality of the liquefied petroleum gas tank handle. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the top three-dimensional structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the hydraulic rod and extrusion positioning assembly of this utility model; Figure 5 This is a three-dimensional structural diagram of the extrusion positioning component of this utility model; Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of the extrusion positioning component of this utility model; Figure 7 This is a partial three-dimensional structural diagram of the extrusion positioning component of this utility model.
[0014] Reference numerals in the attached drawings: 1. Support frame; 2. Placement seat; 3. Turntable; 4. Mounting seat; 5. Hydraulic rod; 6. Extrusion positioning assembly; 61. Sleeve; 62. Extrusion plate; 63. Spring one; 64. Positioning column; 65. Spring two; 66. Transmission rod; 67. Hinge seat; 68. Limiting seat; 69. Collar; 610. Connecting cylinder; 611. Telescopic rod; 7. Motor. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0016] A preferred embodiment of the present invention provides a handle welding device for manufacturing liquefied petroleum gas tanks, which will be described in detail below. Figures 1-7 As shown, a handle welding device for manufacturing liquefied petroleum gas tanks includes a support frame 1. A placement seat 2 is fixedly connected to the front side of the bottom of the support frame 1. A turntable 3 is rotatably connected to the center of the top of the placement seat 2. An anti-slip groove is provided on the top of the turntable 3. A motor 7 is fixedly installed at the center of the bottom of the placement seat 2, and the motor 7 is connected to the turntable 3 for transmission. After the gas tank is placed on the turntable 3, the motor 7 can drive the turntable 3 and the gas tank to rotate.
[0017] The top of the support frame 1 is fixedly connected to the mounting base 4. A hydraulic rod 5 is fixedly installed at the center of the top of the mounting base 4. The hydraulic rod 5 extends downward through the mounting base 4 to the lower side of the mounting base 4. A compression positioning component 6 is provided at the bottom of the hydraulic rod 5. The compression positioning component 6 is used for centering and positioning the handle above the tank.
[0018] The compression positioning assembly 6 includes a sleeve 61, the bottom of the hydraulic rod 5 is rotatably connected to the sleeve 61, the outer side of the middle part of the sleeve 61 is slidably connected to the compression plate 62, the top of the compression plate 62 is fixedly connected to the top of the sleeve 61, and the center of the bottom of the sleeve 61 is slidably connected to the positioning post 64. The bottom end of the positioning post 64 adopts a conical tip design, so that the positioning post 64 can be inserted into the opening at the top of the gas tank in a centered position.
[0019] A spring 65 is fixedly connected between the top of the positioning post 64 and the inner wall of the top of the sleeve 61. A transmission rod 66 is evenly hinged to the outer periphery of the bottom of the sleeve 61 and the outer periphery of the bottom of the positioning post 64. A hinge seat 67 is hinged between adjacent sides of the transmission rods 66 on the upper and lower sides. One end of the transmission rods 66 on the upper and lower sides is hinged to the outer periphery of the bottom of the sleeve 61 and the outer periphery of the bottom of the positioning post 64, respectively. The other end is symmetrically tilted outward and hinged to the hinge seat 67. Therefore, during the upward movement of the positioning post 64 relative to the sleeve 61, the transmission rod 66 can push the hinge seat 67 to unfold outward. A limit seat 68 is fixedly connected to the outer side of the middle part of the hinge seat 67. The outer surface of the limit seat 68 adopts an arc design, which is conducive to the pressing contact between the outer side of the limit seat 68 and the inner wall of the handle.
[0020] The extrusion positioning assembly 6 also includes a collar 69. The collar 69 is slidably connected to the outer side of the positioning post 64. Connecting cylinders 610 are uniformly fixedly connected to the periphery of the collar 69, and the connecting cylinders 610 are all aligned with the hinge seat 67. The telescopic rods 611 are slidably connected to the inner side of the outer side of the connecting cylinders 610, and one outer end of the telescopic rods 611 is fixedly installed at the center of the inner side of the hinge seat 67, thereby ensuring the stability of the hinge seat 67 when it expands outward or retracts inward.
[0021] The working principle of this utility model is as follows: During welding, the gas cylinder is placed in the center of the top turntable 3 of the placement seat 2. After placement, the sleeve 61 is moved downward by the action of the hydraulic rod 5, which in turn moves the positioning pin 64 downward, so that the tip of the bottom of the positioning pin 64 is inserted into the opening in the center of the top of the gas cylinder, thereby placing the sleeve 61 and the positioning pin 64 in the center of the top of the gas cylinder.
[0022] After the bottom of the positioning post 64 is inserted into the opening at the top of the gas tank, the sleeve 61 continues to move downward, which will cause the positioning post 64 to compress the spring 65 and move upward relative to the sleeve 61. During the upward movement of the positioning post 64 relative to the sleeve 61, the transmission rods 66 on both the upper and lower sides can push the hinge seat 67 and the limiting seat 68 to unfold outward, so that the limiting seat 68 presses against the inner wall of the handle, thereby achieving the centering and limiting of the handle above the gas tank.
[0023] It should be noted that the sliding connection of the collar 69 on the outside of the positioning post 64, and the limiting of the hinge seat 67 by the connecting cylinder 610 and the telescopic rod 611 on the periphery of the positioning post 64, can ensure the stability of the hinge seat 67 and the limiting seat 68 as they unfold outward.
[0024] While the hinge seat 67 and the limiting seat 68 unfold outward to center and limit the handle, as the sleeve 61 moves downward, it can also cause the extrusion plate 62 to press against the top of the handle and compress the spring 63. Under the action of the spring 63, the extrusion plate 62 presses down on the handle, so that the handle and the top of the gas tank are in extrusion contact, thereby improving the welding quality of the liquefied petroleum gas tank handle.
[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A handle welding device for manufacturing liquefied petroleum gas tanks, comprising a support frame (1), characterized in that, The support frame (1) is fixedly connected to the front side of the bottom of the support frame (1), and a turntable (3) is fixedly connected to the center of the top of the support frame (1). The top of the support frame (1) is fixedly connected to the mounting base (4), and a hydraulic rod (5) is fixedly installed at the center of the top of the mounting base (4). The hydraulic rod (5) extends downward through the mounting base (4) to the lower side of the mounting base (4). A compression positioning component (6) is provided at the bottom of the hydraulic rod (5). The compression positioning component (6) is used for centering the handle above the tank.
2. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 1, characterized in that, The top of the turntable (3) is provided with an anti-slip groove, and a motor (7) is fixedly installed at the center of the bottom of the placement seat (2), and the motor (7) is connected to the turntable (3) in a transmission connection.
3. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 1, characterized in that, The extrusion positioning assembly (6) includes: Sleeve (61), the bottom of the hydraulic rod (5) is rotatably connected to the sleeve (61). The extrusion plate (62) is slidably connected to the outer side of the middle part of the sleeve (61); Spring 1 (63) is fixedly connected between the top of the extrusion plate (62) and the top of the sleeve (61). Positioning post (64): The positioning post (64) is slidably connected at the center of the bottom of the sleeve (61). Spring 2 (65) is fixedly connected between the top of the positioning post (64) and the inner wall of the top of the sleeve (61). The transmission rod (66) is evenly and hinged to the outer periphery of the bottom of the sleeve (61) and the outer periphery of the bottom of the positioning post (64). The hinge seat (67) is used to limit the hinge between adjacent sides of the transmission rod (66) on the upper and lower sides. Limiting seat (68), the outer side of the middle part of the hinge seat (67) is fixedly connected to the limiting seat (68).
4. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 3, characterized in that, The bottom end of the positioning post (64) is designed with a tapered tip.
5. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 3, characterized in that, One end of the transmission rod (66) on the upper and lower sides is hinged to the outer periphery of the bottom of the sleeve (61) and the outer periphery of the bottom of the positioning column (64), respectively, and the other end is hinged to the hinge seat (67) after being symmetrically tilted outward.
6. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 3, characterized in that, The outer surface of the limiting seat (68) is designed with an arc surface.
7. The handle welding device for manufacturing liquefied petroleum gas tanks according to claim 3, characterized in that, The extrusion positioning assembly (6) further includes: A collar (69) is slidably connected to the outer side of the positioning post (64). Connecting cylinder (610), the outer periphery of the collar (69) is uniformly fixedly connected with connecting cylinder (610), and the connecting cylinder (610) is aligned with the hinge seat (67); The telescopic rod (611) is slidably connected to the inside of the outer side of the connecting cylinder (610), and one outer end of the telescopic rod (611) is fixedly installed at the center of the inner side of the hinge seat (67).